{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["manufacturing process", "manufacturing standard", "concept or principle", "enabling technology", "biomedical", "machanical property"], "input": "The porosity of the material can be controlled ."}
{"manufacturing process": [], "manufacturing standard": [], "concept or principle": [], "enabling technology": [], "biomedical": [], "machanical property": ["porosity"]}